A black bear has killed a Minnesota woman on a secluded island in Canadian waters in an attack that experts call extremely rare. Catherine Sweatt-Mueller, 62, of Maple Plain, was staying with her parents in a remote cabin on Red Pine Island in Rainy Lake when she was killed, Ontario Provincial Police said. Police Constable Jim Davis saids Sweatt-Mueller went outside Sunday evening when she heard her two dogs barking, but that she never returned, the Star Tribune reported.